Bird-killing device.



PATENTED NOV. 28, 1905.

J. A. BEIERSGHMI'IT. BIRD KILLING DEVICE. APPLIGATION FILED Am.21,19o5.

on 0 l m V N l ,4 TTRIVEYS JOHN A. BEIEESCHMITT, oF LESTER TOWNSHIP,

f i iowA.

UNITED STATES PATENT (n iEro'E,

BLACKHAWK COUNTY,

Specification of Letters Patent.

Patented Names, 1905.

Application led April 21, 1905. Serial No. 256,758.

In such localities it is found for the preservation of fruit, garden stuff, and cereals that means must beresorted to for the destruction of such depredators. Y

The object of the invention is to provide novel details of construction for a mechanical device which will stab and kill a bird that ali hts upon it, the device bein adapted for dis odging the stricken bird Vam? resetting its mechanism, so that it will kill a number of birds successively.v

The invention consists in the novel con# struction and combination of parts, as is hereinafter described, and defined in the claims.

Reference is tobe had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures. Y

Figure 1 is a-side view of the device having a portion of the casing removed, exposing interior details which are adjusted for stabbing a bird that ali hts upon the top of the upright casing. ig. 2 is a similar'view, but showing the relative position of working `parts at-the time a bird has been ierced by a stabbing-rodthat is a detail of't e device. Fig. 3 is a sectional side view of the easing of the device substantially on the line 3 3 in Fig. 1, showingI the details therein as seen in direction of the arrow in-Fig. 2. Fig. 4 is an enlarged detached plan view of a helical driving-spring and operative details directly connected therewith, and Fig. 5 is a side view of parts shown in Fig. 4.

A casing 6 for reception and support of working details in proper relative positions is em loyed, consisting of a preferably reetangu ar box of proper length, the normally upper ortion 6a of Which is tapered'to the end, w ereon is mounted loosely acap-piece 7. -Within the casing 6 below its tapered portion a skeleton frame is secured, as at wa., upon one sidewall thereof, said frame comprisinfr .two Asimilar side portions b l), that are spaced apart parallel with each other by cross-bars b', four in number, that are secured by their ends in the corners of the side plates b. Oppositely in the side plates b near their centers end portions of an arbor 8 are respectively ournaled. Within the frame, near the side wall b, that is secured by the ears a upon the side of the casin a motorspring ,Sa is mounted and secure upon the arbor 8, said helical spring having its inner end secured upon the arbor and the outer extremity Sb'hooked upon one of the cross-bars t', as is indicated in Fig. 3. Upon the opposite end of the arbor 8, which is extended outside of an ad'acent frame side wall or plate b,

a detent-dis 8c is mounted and secured, there being a toe `c projected from its circular edge having ratchet-tooth form, as appears in Figs. 1, 2, and 4.

Adjacent to the peri hery of the detentdisk 80, upon the side wa l b of the frame nearest to said disk, an essentially S-shaped dog d is ivoted, the ivot d engaging the dog at one end thereo as shown in Figs. 1, 2, and 4, so that a main portion of the flat platelike do may be rocked toward and -from the edge o the disk. One end portion of the dog d is adapted for slidable engagement with the adjacent surface of the frame side wall b, and upon the opposite end thereof a click or pawl eis pivoted by one end, the nose of the pawl being rocked toward the periphery of the disk 8c by means of a contractile vspring e', thatis Vmounted upon the dog and isconnected with one end of the pawl, as is clearly shown in Figs. 1, 2, and 4. A lug g is formed on the side of the disk that is nearest to the frame side wall whereon the end portion of the dog d rides, said lug being adapted for a frictional engagement with the convex edge of the dog that 1s nearest to the I IOO secured at its forward end upon the frame, the tension of said spring being adapted to press the cap-piece 7 off of the tapered end of the frame a short distance and also to draw the dog d toward the edge of the disk 8. Upon the disk 8C, near the toe c thereon, one end of a stabbing rod or bar 1l is pivoted, as indicated at h in the drawings, and thence extends through the tapered portion 6aL of the frame and likewise through the end wall of the cap -piece 7, the rod being taperpointed, where it is held to slide through a perforation in said end wall.

A suitable key 12 is employed for winding up the helical spring 8a by engagement through a perforation in a side wall of the casing 6 with a squared end of the arbor 8.

The casing 6 is of such length as adapts it to be planted as a post in the ground, so that it may form a rest whereon crows, blackbirds, or sparrows will be likely to alight.` It is also to be understood that the casing may be secured upon an upright post that is part of a fence or upon any other stable obj ect which will be of such a height as to permit the crank-handled key l2 to be used for winding up the motor-spring 8a.

In arranging the device for use the spring 8a is wound up, the pawl e serving as a detent-click by its engagement with the toe c, this engagement by the pawl and toe, as shown in Fig. l, serving to retract the stabbilig-rod Il, so that its pointed end will be concealed within the top of the casing 6 and cap-piece 7.

In operation when a bird alights upon the ca -piece 7 the imposed weight of the bird will rock the pawl ea away from the toe c, and thus permit the force of the spring S2L to turn instantly the detent-disk 8, which will simultaneously proj ect the pointed end of the stabbing-rod 11`into the body of the bird a distance which will insure its death. The lug g that has thus been carried downward contacts with the convex edge of the dog d and temporarily checks the rotatable movement of the disk 8C, which is continued at diminished speed until arrested by the interlocking engagement of the toe c with the pawl e, thus giving the rod a 'single reciprocation and the disk one revolution. It will be noted in Fig. l that by the completion of a revolution had by the disk 8C the stabbing-rod ll has been retracted within the upper end of the casing 6 and the connecting-rod l0 has, by the contractile force of the spring 10, been lifted a short distance above the top of the casing, thus resetting the device for a second killing operation, as obviously the complete retraction of the stabbing-rod 1l releases the bird therefrom, and the dead bird falls at the side of the casing to the ground.

Slight changes in constructive details may obviously be made within the scope of my invention, and I claim the right to make such changes as are within the latitude of the claims.

Having described my invention, I claim as new and desire to secure by Letters Patentl. The combination with a casing, a supported rotatable arbor in the casing, means for rotating the arbor, and means for arresting the rotation thereof, of a depressible cappiece on the top of the casing, a spring-drawn connection between the cap -piece and the arresting means, adapted to raise the cap-piece, said means being actuated by the arresting means, and a stabbing-rod, reciprocated by a turning movement of the arbor, which is released for seinirotation by the depression of the cap-piece that is effected by weight imposed thereon.

2. The combination with a casing,'a supported rotatable arbor in the casing, a detentdisk on one end of said arbor, a dog pivoted on the casing, and a spring-drawn pawl pivoted on the dog and adapted for arresting rotation of the detent-disk, of a loose cap-piece on the top of the casing, a rod connection between the dog and the cap-piece, a spring connecting said rod with the casing and normally raising the cap-piece, a stabbing-rod reciprocated by a turning movement of the disk and working through the cap-piece, and means for rotating the arbor,

3, The combination with a casing tapered toward the upper end, a frame secured in the casing, an arbor rotatable on the frame, a motor-spring adapted for turning the arbor, a circular detent-disk mounted upon one end of the arbor, a toe projected from the edge of the disk, and means for winding the spring by its engagement with the other end of said arbor, of a cap-piece movably mounted upon the small upper end of the casing, a springdrawn rod connection pivoted at one end on the detent-disk and secured at its opposite end on the cap-piece, a stabbing-rod pivoted by one end on the disk adjacent to tho toc thereon, said rod being pointed at the opposite end that works in the small end of the casing and through the cap-piece, a dog pivoted on the frame and adapted for engaging the toe, said dog being released from the toe so as to permit a revolution of the disk when the cap-piece is depressed.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOI-IN A. BEIERSCI-IMITT.

Witnesses:

P. F. DAMGE, WV. F. TREADWELL.

IOO 

